Paper-roll holder and changeable type-printer



' (No Model.) 2 sheets-sheet 1.

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PAPER ROLL HOLDER ANB GHANGEABLB TYPE PRINTER.. No. 498,516. Patented'May 30, 1893.

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PAPER` ROLL HOLDER' AND GHANGBABLB TYPE PRINTER.

1go. 498,516r Patented May 3 0, 1.893.

UNITED STATES PATENT OEEICE.

FRANK B.`KOSA, OF HILLSBOROUGIAI, WISCONSIN.

PAPER-ROLL HOLDER AND CHANGEABLE TYPE-PRINTER.

SPECIFICATION forming part of Letters Patent No. 498,516, dated May 30, 1893. Application filed January 16, 1891. Serial No. 377.974. (No model.)

To all whom it may concern.-

Be it known that I, FRANK B. KOSA, a citizen of the United States, residing at Hillsborough, in the county of Vernon and State of Visconsimhavc invented certain new and useful Improvements in Paper-Roll Holders and Printers, of which the following is a specication.

This invention relates to roll paper reels and particularly to an attachment for roll paper reels, whereby the paper is printed as it is drawn from the roll.

The object of the invention is to provide an automatic device which will cause only one impression to be made as the paper is pulled from the roll, whether that portion of paper drawn from said roll be long or short.

The invention further consists of certain constructions and combination of parts to effect a perfectly cheap and durable roll paper printer, as will be more fully hereinafter described and claimed.

In the accompanying drawings forming part of this invention, Figure 1 is a perspective view of my improved printing device secured to a paper roll holder. Fig. 2 is a vertical section of the side arms supporting the inking and printing rollers. Fig. 2 is a diagrammatic view showing the relative arrangement of the rollers and the paper roll. Fig. 3 is a perspective view of the tension rod. Fig. 4 isv a perspective of the bar in which vthe tension bar slides. Fig. 5 is a top plan View of the base plate in which the side arms are adjustably secured. Fig. 6 is a front elevation of the printing roller showing at each end the automatic device, and the semi-circular bridge pieces over the non-printing space of such roller. Fig. 7 is a detached end view of one of the bridge pieces. Fig. 8 is a cross section of the printing roller. Fig. SM is an enlarged plan view of the inner side of a protecting plate. Fig. 9 is an end view of the printing roller showing the automatic mechanism in norm al position after the previous impression has been printed. Fig. 10 is an end view of the printing roller and paper roll in dotted lines, with the toothed wheel engaging the paper roll and the segment. Fig. 11 is a similar view, with the parts moved on b y pulling the paper. Fig. 12 is a similar View with the toothed wheel and the segment disengaged,

and neither engaged by the paper roll. 13 is a similar view showing the segment approaching the paper'roll. Fig. 14 shows the segment engaging the paper roll. Fig. 15 shows the extreme end of the segment engaging the paper roll. Fig. 16 shows the toothed wheel engaging thel paper roll, and the wheel disengaged by the segment. Fig. 17is an enlarged side view of the segment. Fig. 18 is a modified form of my attachment in side elevation, and Fig. 19 is an enlarged side elevation of the main features of the modification.

The same letters of reference denote the same parts throughout the several figures of the drawings.

To a suitable base A are secured the base plates B having supporting flanges a and guide ways b for the supports C which support and carry the ink roller D, the type inking roller E and the printing roller F. The supports C, of which there are two, one at each end of the rollers, have flanges c on their inlocated the spindles ofthe ink roller D, and

the type-inking roller E. These spindles are lettered respectively d and e.

G designates the top cross bar having right angled projections G at each end, each of said ends having a parallel lian ge g on its out side throughout its length. This cross bar G is rigidly secured through the right angled projections G to thesaid arms C near their tops and holds the arms firmly together.

G2 denotes a knife depending from the cross bar G and engaging the paper roll throughout its length, for the purpose of cutting the paper off from the roll after it is printed.

The tension rod His constructed with a U- shaped or forked lower end, and with a right angle projection having a knob hat its upper end. There are two of these tension rods, one at each end of the machine.

H denotes a coil spring secured at one end to the base plate B, and at theother end to the knob h of the tension rod I-I. Iterm this a tension spring, as it is through the medium of this springll and the said rod H thatthe rollers D, E and F ass ume the proper relative roo is pulled from the reel.

The printing roller F may be constructed i of any suitable material, but I prefer to use wood, and provide the ends with brass or similar plates I, which have a series of apertures i and a central spindle t" constructed so as to be journaled in a bearing f in the supports C.

The standards K are secured in a suitable supporting block or small table L and have journal sockets 7c in which the spindles of the paper roll M, turn. These standards also support the base A in proper position above the paper roll, so that a knife of ordinary construction may be suspended from the base A down to the paper.

The automatic mechanism for throwing the printing roll into and out of action consists of a toothed wheel N loosely secured to the end plate Iby a pin or screw m; and atoothed segment O securely pivoted to the said plate I on the pin n so as to oscillate freely between the toothed wheel N, and a stop o also secured on the face of the end plate. It will be observed that the two pivot points m and fn., and the stop o, have iiXed positions with relation to each other and to the center of the end plate I, so that they will assume the positions when the machine is in operation as in Figs. 9 to 17, of the drawings. The segment O has a series of small teeth on its periphery which catch the paper when it comes in contact with it and thus promote its speed. The periphery of this segment has the same center as the periphery of the end plate t, and said periphery extends beyond that .of the end plate and printing roller so as to lift the printing roller or cylinder out of contact with the paper roll, and thus stop the printing. The side of the segment O nearest the toothed wheel N, has one projection or large tooth P, having an angle face see Fig. 17, so that the wheel may readily turn past the said tooth or projection when not engaged `therewith. It will be observed that the side of the segment Where the tooth or projection P is located is ofthe same curvature as the periphery of the wheel N, so as to set closely down on said Wheel when they are engaged with each other.

As shown in Fig. 8 of the drawings the printing roller has parallel ribs or strips p secured to each end plate I by means of small screws p which pass through the apertures t'. Suitable spaces are left between these strips to receive type p2 which may be placed therein in the usual manner. There is a large space Q which is not used for type and as there is no occasion for printing all the paper as it passes off the reel it becomes necessary to bridge over this space, Which is accomplished by securing two oi more bridge pieces q to the body of the printing roll F, so as to brace the ribs or strips p and protect the body of the printing roller. It is for this particular purpose of preventing any printing, or the bridge pieces from blurring the paper while the paper is being drawn from the roll, that the automatic mechanism which consists of the wheel Nand the segment O is employed, and is placed on the end plates I just opposite and on an alignment with the space Q left blank or Where there is no printing desired, for it will readily be seen that as soon as the tooth P engages the wheel N, the latter is locked and then moves the cylinder to again effect the printing.

V is a plate secured to the plate I, over the toothed wheel and segment, so as to protect them. As the paper is drawn quickly from the roll, the teeth of the segment pass out of engagement with the paper, because the segments are pivoted loosely on the end plates of the cylinder and the inertia of the latteris sufficient to prevent it from turning with the segments. While the segment teeth are thus rendered out of engagement with the paper, the toothed wheel N is operated as long as the paper is continually pulled fast, and when it is desired to start the printing, the movementof the paperis entirely or nearly stopped, which will stop the Wheel N and allow the tooth or projection P on the segnientO to engage the teeth of the wheel N, and when the paper is started from the roll again, it operates the printing roller. Several different sizes of these segments may be used on the same machine, according to the amount of printing desired, that is for a large amount, a small segment would be employed, and for a small amount a large segment would take the place of a smaller one.

The operation of the device is as follows: The cylinder is raised from contact with the paper by means of the pivoted segments. Upon pulling the paper quickly the segments will first be moved forward from locking contact with the wheels N, without starting the cylinder. The further movement of the segments will'cause them to strike the stops o and thereby turn the cylinder slightly to bring the wheels N into contact with the paper, which wheels still keep the cylinder raised out of contact with the paper. The further movement of the paper turns the wheels on their axes Without turning the cylinder until the segments drop back into locking contact with the Wheels, whereupon the cylinder will be turned and the printing effected.

In the modifications shown in Figs. 18 and 19 an ordinary pawl is substituted for the toothed segment such pawl and the wheel N being respectively loosely pivoted and eccentrically mounted upon the ends of the printing cylinder, and their operation is exactly the same as in the foregoing described op-` eration, the construction of the modified parts being as follows: A lever R is pivoted near the end of the standards K on either side of the machine, and upon the free ends of the said levers is joiirnaled the printing roller, which has the toothed Wheel N actuated and controlled by the pawl r. The inking'rollers are suspen ded over the printing roller by the free ends of two bow springs S; such free ends are forked and connected by a straight bar s IOO IIO

so as to form a triangle support for the printing rollers. securely fixed to the lever R by bolts or setl screws T. When the toothed wheel Nstrikes the paper roll it is turned by pulling the paper from the roll, and thus the pawl fr is prevented from dropping into engagement with the said Wheel after thepawl has passed its center of gravity whenthe wheel has come opposite the paper. The operation of the pawl upon the toothed Wheel N is just the same as the segment, but the said pawl does not engage the paper. This construction vvill be found more conveniently employed in small machines or Where it is desired to put the machine for temporary use.

The roll paper reel, knife and guard shown and described, form no part of my invention, but what I believe to be entirely my own invention is the automatic mechanism or its equivalent for accomplishing the same purpose, together with the manner of suspending the inking and type rollers above the paper roll; and in this I desire to be understood as not limiting myself to the exact construction, arrangement of parts or material used, for I hereby reserve'to myself the right to change the relative position and manner of constructing said parts without departing from the spirit of my invention.

Having thus described my invention, whatv reels, the inking rolls and the printing roller the supports having flanges and a bearing 1ocated below said flanges in which the printing roller is journaled in combination-With the tension rod having a forked end, and the tension spring secured to the tension rod, substantially as and for the purpose set forth.

3. In a printing attachment for the paper reels, the combination of the inking rolls and the printing roller, and means for supporting the same one above the other, said roller pro- The other end of the spring S is vided with the end plates, the toothed Wheels eccentrically mounted on the end-plates and projecting beyond the periphery of the printing rollerand the tooth segments loosely piv oted on the face of each end plate, substantially as and for the purposes set forth.

4. A printingv roller for paper reels., having end plates connected by ribs or strips, a toothed wheel looselyand eccentricallymounted on the face of each of the end plates, and extending beyond the periphery of the printing roller in combination with a toothed seg-` ment loosely pivoted onk the face of the end plates substantially as and for the purpose set forth.

5. A printing roller for paper reels hav-- ing end plates joined together by ribs or strips arranged with teeth type space between them and the bridge pieces secured to the printing roller,in combination with the automatic mechanism consisting lof the toothed Wheel and the pivoted toothed segment secured to each of the end plates and in alignment with the said bridge pieces, said Wheel eccentrically mounted on each of the end plates and projecting beyond the periphery of the printing roller substantially as and for the purpose set forth. n

6. In a printing attachment for printing roll paper reels, the combination with the printing roller and the inking rolls of the supports, the base plates having the support'- ing flanges and guideways wherein the said supports are operated, the tension rods, a

spring secured to each of said base plates and connected at the top of the supports to the said tension rods, substantially as shown and described and for the purpose set forth.

7. The combination with a printing roller of the character described, of the end plates, and

automatic mechanism comprising a toothed IOO 

